18995260416 has 176 divisors, whose sum is σ = 57016777728. Its totient is φ = 5570150400.

The previous prime is 18995260411. The next prime is 18995260421. The reversal of 18995260416 is 61406259981.

It is an interprime number because it is at equal distance from previous prime (18995260411) and next prime (18995260421).

It is a tau number, because it is divible by the number of its divisors (176).

It is not an unprimeable number, because it can be changed into a prime (18995260411) 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, 1038486 + ... + 1056618.

Almost surely, 2^18995260416 is an apocalyptic number.

18995260416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18995260416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28508388864).

18995260416 is an abundant number, since it is smaller than the sum of its proper divisors (38021517312).

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

18995260416 is a wasteful number, since it uses less digits than its factorization.

18995260416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18198 (or 18180 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 18995260416 in words is "eighteen billion, nine hundred ninety-five million, two hundred sixty thousand, four hundred sixteen".