620577211557 has 16 divisors (see below), whose sum is σ = 885748032000. Its totient is φ = 385300389744.

The previous prime is 620577211549. The next prime is 620577211559. The reversal of 620577211557 is 755112775026.

It is not a de Polignac number, because 620577211557 - 2³ = 620577211549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620577211559) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 92262057 + ... + 92268782.

It is an arithmetic number, because the mean of its divisors is an integer number (55359252000).

Almost surely, 2^620577211557 is an apocalyptic number.

It is an amenable number.

620577211557 is a deficient number, since it is larger than the sum of its proper divisors (265170820443).

620577211557 is a wasteful number, since it uses less digits than its factorization.

620577211557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184530920.

The product of its (nonzero) digits is 1029000, while the sum is 48.

The spelling of 620577211557 in words is "six hundred twenty billion, five hundred seventy-seven million, two hundred eleven thousand, five hundred fifty-seven".