20752277670 has 48 divisors (see below), whose sum is σ = 53977352832. Its totient is φ = 5531742720.

The previous prime is 20752277659. The next prime is 20752277699. The reversal of 20752277670 is 7677225702.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188694 + ... + 277686.

It is an arithmetic number, because the mean of its divisors is an integer number (1124528184).

Almost surely, 2^20752277670 is an apocalyptic number.

20752277670 is an abundant number, since it is smaller than the sum of its proper divisors (33225075162).

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

20752277670 is a wasteful number, since it uses less digits than its factorization.

20752277670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91597 (or 91594 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The spelling of 20752277670 in words is "twenty billion, seven hundred fifty-two million, two hundred seventy-seven thousand, six hundred seventy".