16151993360639 has 8 divisors (see below), whose sum is σ = 16532183133312. Its totient is φ = 15772010952600.

The previous prime is 16151993360627. The next prime is 16151993360641. The reversal of 16151993360639 is 93606339915161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16151993360639 is a prime.

It is a super-2 number, since 2×16151993360639² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16151993360689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51683537 + ... + 51995114.

It is an arithmetic number, because the mean of its divisors is an integer number (2066522891664).

Almost surely, 2^{16151993360639} is an apocalyptic number.

16151993360639 is a deficient number, since it is larger than the sum of its proper divisors (380189772673).

16151993360639 is a wasteful number, since it uses less digits than its factorization.

16151993360639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103682317.

The product of its (nonzero) digits is 21257640, while the sum is 62.

The spelling of 16151993360639 in words is "sixteen trillion, one hundred fifty-one billion, nine hundred ninety-three million, three hundred sixty thousand, six hundred thirty-nine".