220257145797 has 32 divisors (see below), whose sum is σ = 334133614080. Its totient is φ = 128084490240.

The previous prime is 220257145777. The next prime is 220257145853. The reversal of 220257145797 is 797541752022.

It is not a de Polignac number, because 220257145797 - 2¹⁰ = 220257144773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220257145777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2018604 + ... + 2124917.

It is an arithmetic number, because the mean of its divisors is an integer number (10441675440).

Almost surely, 2^220257145797 is an apocalyptic number.

It is an amenable number.

220257145797 is a deficient number, since it is larger than the sum of its proper divisors (113876468283).

220257145797 is a wasteful number, since it uses less digits than its factorization.

220257145797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143613.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 220257145797 in words is "two hundred twenty billion, two hundred fifty-seven million, one hundred forty-five thousand, seven hundred ninety-seven".