16961897472 has 88 divisors (see below), whose sum is σ = 48687420096. Its totient is φ = 5219033088.

The previous prime is 16961897437. The next prime is 16961897507. The reversal of 16961897472 is 27479816961.

It is an interprime number because it is at equal distance from previous prime (16961897437) and next prime (16961897507).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172428 + ... + 252299.

Almost surely, 2^16961897472 is an apocalyptic number.

16961897472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16961897472 is an abundant number, since it is smaller than the sum of its proper divisors (31725522624).

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

16961897472 is a wasteful number, since it uses less digits than its factorization.

16961897472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424763 (or 424745 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 60.

The spelling of 16961897472 in words is "sixteen billion, nine hundred sixty-one million, eight hundred ninety-seven thousand, four hundred seventy-two".