2100162855557 has 16 divisors (see below), whose sum is σ = 2276495383680. Its totient is φ = 1925962420800.

The previous prime is 2100162855541. The next prime is 2100162855589. The reversal of 2100162855557 is 7555582610012.

It is a cyclic number.

It is not a de Polignac number, because 2100162855557 - 2⁴ = 2100162855541 is a prime.

It is a super-2 number, since 2×2100162855557² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100162855257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043632 + ... + 2894262.

It is an arithmetic number, because the mean of its divisors is an integer number (142280961480).

Almost surely, 2^{2100162855557} is an apocalyptic number.

It is an amenable number.

2100162855557 is a deficient number, since it is larger than the sum of its proper divisors (176332528123).

2100162855557 is a wasteful number, since it uses less digits than its factorization.

2100162855557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851884.

The product of its (nonzero) digits is 840000, while the sum is 47.

The spelling of 2100162855557 in words is "two trillion, one hundred billion, one hundred sixty-two million, eight hundred fifty-five thousand, five hundred fifty-seven".