20620211502 has 64 divisors (see below), whose sum is σ = 45432140544. Its totient is φ = 6187376640.

The previous prime is 20620211501. The next prime is 20620211527. The reversal of 20620211502 is 20511202602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620211501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2930913 + ... + 2937939.

It is an arithmetic number, because the mean of its divisors is an integer number (709877196).

Almost surely, 2^20620211502 is an apocalyptic number.

20620211502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20620211502 is an abundant number, since it is smaller than the sum of its proper divisors (24811929042).

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

20620211502 is a wasteful number, since it uses less digits than its factorization.

20620211502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7473.

The product of its (nonzero) digits is 480, while the sum is 21.

The spelling of 20620211502 in words is "twenty billion, six hundred twenty million, two hundred eleven thousand, five hundred two".