20545016260 has 24 divisors (see below), whose sum is σ = 44536294656. Its totient is φ = 7952909280.

The previous prime is 20545016257. The next prime is 20545016281. The reversal of 20545016260 is 6261054502.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 16567942 + ... + 16569181.

It is an arithmetic number, because the mean of its divisors is an integer number (1855678944).

Almost surely, 2^20545016260 is an apocalyptic number.

20545016260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20545016260 is an abundant number, since it is smaller than the sum of its proper divisors (23991278396).

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

20545016260 is a wasteful number, since it uses less digits than its factorization.

20545016260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33137163 (or 33137161 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 20545016260 in words is "twenty billion, five hundred forty-five million, sixteen thousand, two hundred sixty".