16651550152 has 32 divisors (see below), whose sum is σ = 32591184120. Its totient is φ = 7967946240.

The previous prime is 16651550137. The next prime is 16651550173. The reversal of 16651550152 is 25105515661.

It can be written as a sum of positive squares in 4 ways, for example, as 16178313636 + 473236516 = 127194^2 + 21754^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443053 + ... + 479164.

Almost surely, 2^16651550152 is an apocalyptic number.

It is an amenable number.

16651550152 is a deficient number, since it is larger than the sum of its proper divisors (15939633968).

16651550152 is a wasteful number, since it uses less digits than its factorization.

16651550152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922321 (or 922317 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 16651550152 in words is "sixteen billion, six hundred fifty-one million, five hundred fifty thousand, one hundred fifty-two".