16477921038 has 32 divisors (see below), whose sum is σ = 35497123200. Its totient is φ = 5082539616.

The previous prime is 16477921037. The next prime is 16477921069. The reversal of 16477921038 is 83012977461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16477921037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675833 + ... + 1685636.

It is an arithmetic number, because the mean of its divisors is an integer number (1109285100).

Almost surely, 2^16477921038 is an apocalyptic number.

16477921038 is an abundant number, since it is smaller than the sum of its proper divisors (19019202162).

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

16477921038 is a wasteful number, since it uses less digits than its factorization.

16477921038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361536.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 16477921038 in words is "sixteen billion, four hundred seventy-seven million, nine hundred twenty-one thousand, thirty-eight".