13432636620 has 288 divisors, whose sum is σ = 45953526528. Its totient is φ = 3273944832.

The previous prime is 13432636573. The next prime is 13432636631. The reversal of 13432636620 is 2663623431.

13432636620 is a `hidden beast` number, since 1 + 3 + 4 + 3 + 26 + 3 + 6 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6759267 + ... + 6761253.

It is an arithmetic number, because the mean of its divisors is an integer number (159560856).

Almost surely, 2^13432636620 is an apocalyptic number.

13432636620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13432636620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22976763264).

13432636620 is an abundant number, since it is smaller than the sum of its proper divisors (32520889908).

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

13432636620 is a wasteful number, since it uses less digits than its factorization.

13432636620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 13432636620 in words is "thirteen billion, four hundred thirty-two million, six hundred thirty-six thousand, six hundred twenty".