16990384761 has 48 divisors (see below), whose sum is σ = 28742697984. Its totient is φ = 9468863712.

The previous prime is 16990384751. The next prime is 16990384787. The reversal of 16990384761 is 16748309961.

16990384761 is a `hidden beast` number, since 169 + 9 + 0 + 3 + 8 + 476 + 1 = 666.

It is not a de Polignac number, because 16990384761 - 2⁵ = 16990384729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16990384698 and 16990384707.

It is not an unprimeable number, because it can be changed into a prime (16990384751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1965130 + ... + 1973756.

It is an arithmetic number, because the mean of its divisors is an integer number (598806208).

Almost surely, 2^16990384761 is an apocalyptic number.

It is an amenable number.

16990384761 is a deficient number, since it is larger than the sum of its proper divisors (11752313223).

16990384761 is a wasteful number, since it uses less digits than its factorization.

16990384761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410 (or 9407 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 16990384761 in words is "sixteen billion, nine hundred ninety million, three hundred eighty-four thousand, seven hundred sixty-one".