20077648146 has 64 divisors (see below), whose sum is σ = 44950671360. Its totient is φ = 6642622800.

The previous prime is 20077648127. The next prime is 20077648177. The reversal of 20077648146 is 64184677002.

20077648146 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×20077648146² (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 31 ways as a sum of consecutive naturals, for example, 8538871 + ... + 8541221.

It is an arithmetic number, because the mean of its divisors is an integer number (702354240).

Almost surely, 2^20077648146 is an apocalyptic number.

20077648146 is an abundant number, since it is smaller than the sum of its proper divisors (24873023214).

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

20077648146 is a wasteful number, since it uses less digits than its factorization.

20077648146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476 (or 3470 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 20077648146 in words is "twenty billion, seventy-seven million, six hundred forty-eight thousand, one hundred forty-six".