2111562723655 has 32 divisors (see below), whose sum is σ = 3210906060288. Its totient is φ = 1294720156800.

The previous prime is 2111562723631. The next prime is 2111562723691. The reversal of 2111562723655 is 5563272651112.

It is not a de Polignac number, because 2111562723655 - 2⁵ = 2111562723623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44932077 + ... + 44979046.

It is an arithmetic number, because the mean of its divisors is an integer number (100340814384).

Almost surely, 2^{2111562723655} is an apocalyptic number.

2111562723655 is a deficient number, since it is larger than the sum of its proper divisors (1099343336633).

2111562723655 is a wasteful number, since it uses less digits than its factorization.

2111562723655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89911207.

The product of its digits is 756000, while the sum is 46.

The spelling of 2111562723655 in words is "two trillion, one hundred eleven billion, five hundred sixty-two million, seven hundred twenty-three thousand, six hundred fifty-five".