161627463270 has 192 divisors, whose sum is σ = 525975690240. Its totient is φ = 33523524864.

The previous prime is 161627463269. The next prime is 161627463271. The reversal of 161627463270 is 72364726161.

161627463270 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 2 + 7 + 4 + 632 + 7 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (161627463269) and next prime (161627463271).

It is a super-2 number, since 2×161627463270² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161627463271) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 315967 + ... + 650453.

It is an arithmetic number, because the mean of its divisors is an integer number (2739456720).

Almost surely, 2^161627463270 is an apocalyptic number.

161627463270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161627463270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262987845120).

161627463270 is an abundant number, since it is smaller than the sum of its proper divisors (364348226970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161627463270 is a wasteful number, since it uses less digits than its factorization.

161627463270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334579 (or 334576 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 161627463270 in words is "one hundred sixty-one billion, six hundred twenty-seven million, four hundred sixty-three thousand, two hundred seventy".