20077180536 has 32 divisors (see below), whose sum is σ = 57363373440. Its totient is φ = 5736337248.

The previous prime is 20077180511. The next prime is 20077180573. The reversal of 20077180536 is 63508177002.

It is a junction number, because it is equal to n+sod(n) for n = 20077180494 and 20077180503.

It is a congruent number.

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, 59753346 + ... + 59753681.

It is an arithmetic number, because the mean of its divisors is an integer number (1792605420).

Almost surely, 2^20077180536 is an apocalyptic number.

It is an amenable number.

20077180536 is an abundant number, since it is smaller than the sum of its proper divisors (37286192904).

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

20077180536 is a wasteful number, since it uses less digits than its factorization.

20077180536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119507043 (or 119507039 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 20077180536 in words is "twenty billion, seventy-seven million, one hundred eighty thousand, five hundred thirty-six".