16155542642 has 32 divisors (see below), whose sum is σ = 26371329600. Its totient is φ = 7397526528.

The previous prime is 16155542591. The next prime is 16155542651. The reversal of 16155542642 is 24624555161.

It is a super-2 number, since 2×16155542642² (a number of 21 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 16155542642.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107534 + ... + 209462.

It is an arithmetic number, because the mean of its divisors is an integer number (824104050).

Almost surely, 2^16155542642 is an apocalyptic number.

16155542642 is a deficient number, since it is larger than the sum of its proper divisors (10215786958).

16155542642 is a wasteful number, since it uses less digits than its factorization.

16155542642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102090.

The product of its digits is 288000, while the sum is 41.

The spelling of 16155542642 in words is "sixteen billion, one hundred fifty-five million, five hundred forty-two thousand, six hundred forty-two".