20253707046 has 40 divisors (see below), whose sum is σ = 45406801704. Its totient is φ = 6747740640.

The previous prime is 20253707029. The next prime is 20253707051. The reversal of 20253707046 is 64070735202.

It is a happy number.

It is a super-2 number, since 2×20253707046² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20253707046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 291501 + ... + 354231.

Almost surely, 2^20253707046 is an apocalyptic number.

20253707046 is an abundant number, since it is smaller than the sum of its proper divisors (25153094658).

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

20253707046 is a wasteful number, since it uses less digits than its factorization.

20253707046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64738 (or 64729 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 20253707046 in words is "twenty billion, two hundred fifty-three million, seven hundred seven thousand, forty-six".