16031947690 has 32 divisors (see below), whose sum is σ = 32150732544. Its totient is φ = 5705759040.

The previous prime is 16031947621. The next prime is 16031947721. The reversal of 16031947690 is 9674913061.

It is a happy number.

It is a super-2 number, since 2×16031947690² (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 16031947690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1545309 + ... + 1555648.

It is an arithmetic number, because the mean of its divisors is an integer number (1004710392).

Almost surely, 2^16031947690 is an apocalyptic number.

16031947690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16031947690 is an abundant number, since it is smaller than the sum of its proper divisors (16118784854).

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

16031947690 is a wasteful number, since it uses less digits than its factorization.

16031947690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101022.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 16031947690 in words is "sixteen billion, thirty-one million, nine hundred forty-seven thousand, six hundred ninety".