2155262014777 has 16 divisors (see below), whose sum is σ = 2274987769600. Its totient is φ = 2036166809040.

The previous prime is 2155262014771. The next prime is 2155262014793. The reversal of 2155262014777 is 7774102625512.

It is a happy number.

It is not a de Polignac number, because 2155262014777 - 2⁷ = 2155262014649 is a prime.

It is a super-3 number, since 3×2155262014777³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2155262014777.

It is not an unprimeable number, because it can be changed into a prime (2155262014771) 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, 71325202 + ... + 71355412.

It is an arithmetic number, because the mean of its divisors is an integer number (142186735600).

Almost surely, 2^{2155262014777} is an apocalyptic number.

It is an amenable number.

2155262014777 is a deficient number, since it is larger than the sum of its proper divisors (119725754823).

2155262014777 is a wasteful number, since it uses less digits than its factorization.

2155262014777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40516.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 2155262014777 in words is "two trillion, one hundred fifty-five billion, two hundred sixty-two million, fourteen thousand, seven hundred seventy-seven".