20606252300 has 144 divisors (see below), whose sum is σ = 46764006912. Its totient is φ = 7875936000.

The previous prime is 20606252291. The next prime is 20606252321. The reversal of 20606252300 is 325260602.

It is a self number, because there is not a number n which added to its sum of digits gives 20606252300.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39399839 + ... + 39400361.

It is an arithmetic number, because the mean of its divisors is an integer number (324750048).

Almost surely, 2^20606252300 is an apocalyptic number.

20606252300 is a gapful number since it is divisible by the number (20) 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 20606252300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23382003456).

20606252300 is an abundant number, since it is smaller than the sum of its proper divisors (26157754612).

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

20606252300 is a wasteful number, since it uses less digits than its factorization.

20606252300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 20606252300 in words is "twenty billion, six hundred six million, two hundred fifty-two thousand, three hundred".