161579508510 has 192 divisors, whose sum is σ = 481716357120. Its totient is φ = 34508355840.

The previous prime is 161579508487. The next prime is 161579508511. The reversal of 161579508510 is 15805975161.

It is a super-2 number, since 2×161579508510² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161579508510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161579508511) 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, 1260397 + ... + 1382663.

It is an arithmetic number, because the mean of its divisors is an integer number (2508939360).

Almost surely, 2^161579508510 is an apocalyptic number.

161579508510 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 161579508510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240858178560).

161579508510 is an abundant number, since it is smaller than the sum of its proper divisors (320136848610).

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

161579508510 is a wasteful number, since it uses less digits than its factorization.

161579508510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122351 (or 122344 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 48.

The spelling of 161579508510 in words is "one hundred sixty-one billion, five hundred seventy-nine million, five hundred eight thousand, five hundred ten".