16151243652 has 72 divisors (see below), whose sum is σ = 44282746872. Its totient is φ = 4943462400.

The previous prime is 16151243621. The next prime is 16151243657. The reversal of 16151243652 is 25634215161.

16151243652 is a `hidden beast` number, since 1 + 61 + 512 + 4 + 36 + 52 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1608330816 + 14542912836 = 40104^2 + 120594^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16151243657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296749 + ... + 346932.

It is an arithmetic number, because the mean of its divisors is an integer number (615038151).

Almost surely, 2^16151243652 is an apocalyptic number.

16151243652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16151243652 is an abundant number, since it is smaller than the sum of its proper divisors (28131503220).

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

16151243652 is a wasteful number, since it uses less digits than its factorization.

16151243652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643749 (or 643744 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 16151243652 in words is "sixteen billion, one hundred fifty-one million, two hundred forty-three thousand, six hundred fifty-two".