20807147052 has 48 divisors (see below), whose sum is σ = 55684608000. Its totient is φ = 6711981840.

The previous prime is 20807147047. The next prime is 20807147069. The reversal of 20807147052 is 25074170802.

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

It is a junction number, because it is equal to n+sod(n) for n = 20807146998 and 20807147016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3104052 + ... + 3110747.

It is an arithmetic number, because the mean of its divisors is an integer number (1160096000).

Almost surely, 2^20807147052 is an apocalyptic number.

It is an amenable number.

20807147052 is an abundant number, since it is smaller than the sum of its proper divisors (34877460948).

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

20807147052 is a wasteful number, since it uses less digits than its factorization.

20807147052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6214843 (or 6214835 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 20807147052 in words is "twenty billion, eight hundred seven million, one hundred forty-seven thousand, fifty-two".