16381752660 has 336 divisors, whose sum is σ = 63486896256. Its totient is φ = 3456089856.

The previous prime is 16381752643. The next prime is 16381752677. The reversal of 16381752660 is 6625718361.

16381752660 is a `hidden beast` number, since 1 + 6 + 381 + 7 + 5 + 266 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16381752643) and next prime (16381752677).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1320607 + ... + 1332953.

It is an arithmetic number, because the mean of its divisors is an integer number (188949096).

Almost surely, 2^16381752660 is an apocalyptic number.

16381752660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16381752660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31743448128).

16381752660 is an abundant number, since it is smaller than the sum of its proper divisors (47105143596).

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

16381752660 is a wasteful number, since it uses less digits than its factorization.

16381752660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394 (or 12377 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 16381752660 in words is "sixteen billion, three hundred eighty-one million, seven hundred fifty-two thousand, six hundred sixty".