16042634820 has 60 divisors (see below), whose sum is σ = 50326344684. Its totient is φ = 4278035520.

The previous prime is 16042634801. The next prime is 16042634827. The reversal of 16042634820 is 2843624061.

16042634820 is a `hidden beast` number, since 1 + 604 + 2 + 6 + 3 + 48 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3301191936 + 12741442884 = 57456^2 + 112878^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×16042634820² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16042634827) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4949811 + ... + 4953050.

Almost surely, 2^16042634820 is an apocalyptic number.

16042634820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16042634820 is an abundant number, since it is smaller than the sum of its proper divisors (34283709864).

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

16042634820 is a wasteful number, since it uses less digits than its factorization.

16042634820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902882 (or 9902871 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 16042634820 in words is "sixteen billion, forty-two million, six hundred thirty-four thousand, eight hundred twenty".