13642550020 has 24 divisors (see below), whose sum is σ = 31253842368. Its totient is φ = 4960927200.

The previous prime is 13642549951. The next prime is 13642550071. The reversal of 13642550020 is 2005524631.

It is a super-2 number, since 2×13642550020² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31005576 + ... + 31006015.

It is an arithmetic number, because the mean of its divisors is an integer number (1302243432).

Almost surely, 2^13642550020 is an apocalyptic number.

13642550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13642550020 is an abundant number, since it is smaller than the sum of its proper divisors (17611292348).

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

13642550020 is a wasteful number, since it uses less digits than its factorization.

13642550020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62011611 (or 62011609 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 13642550020 in words is "thirteen billion, six hundred forty-two million, five hundred fifty thousand, twenty".