20351499060 has 24 divisors (see below), whose sum is σ = 56984197536. Its totient is φ = 5427066400.

The previous prime is 20351499053. The next prime is 20351499061. The reversal of 20351499060 is 6099415302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20351499061) 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, 169595766 + ... + 169595885.

It is an arithmetic number, because the mean of its divisors is an integer number (2374341564).

Almost surely, 2^20351499060 is an apocalyptic number.

20351499060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20351499060 is an abundant number, since it is smaller than the sum of its proper divisors (36632698476).

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

20351499060 is a wasteful number, since it uses less digits than its factorization.

20351499060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339191663 (or 339191661 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 20351499060 in words is "twenty billion, three hundred fifty-one million, four hundred ninety-nine thousand, sixty".