20213630715 has 8 divisors (see below), whose sum is σ = 32341809168. Its totient is φ = 10780603040.

The previous prime is 20213630711. The next prime is 20213630737. The reversal of 20213630715 is 51703631202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213630715 - 2² = 20213630711 is a prime.

It is a super-2 number, since 2×20213630715² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20213630711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673787676 + ... + 673787705.

It is an arithmetic number, because the mean of its divisors is an integer number (4042726146).

Almost surely, 2^20213630715 is an apocalyptic number.

20213630715 is a deficient number, since it is larger than the sum of its proper divisors (12128178453).

20213630715 is a wasteful number, since it uses less digits than its factorization.

20213630715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347575389.

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 20213630715 in words is "twenty billion, two hundred thirteen million, six hundred thirty thousand, seven hundred fifteen".