20232257766 has 16 divisors (see below), whose sum is σ = 46245160704. Its totient is φ = 5780645064.

The previous prime is 20232257737. The next prime is 20232257819. The reversal of 20232257766 is 66775223202.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 481720423 = 20232257766 / (2 + 0 + 2 + 3 + 2 + 2 + 5 + 7 + 7 + 6 + 6).

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, 240860170 + ... + 240860253.

It is an arithmetic number, because the mean of its divisors is an integer number (2890322544).

Almost surely, 2^20232257766 is an apocalyptic number.

20232257766 is an abundant number, since it is smaller than the sum of its proper divisors (26012902938).

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

20232257766 is a wasteful number, since it uses less digits than its factorization.

20232257766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481720435.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 20232257766 in words is "twenty billion, two hundred thirty-two million, two hundred fifty-seven thousand, seven hundred sixty-six".