7157705555455 has 32 divisors (see below), whose sum is σ = 10588626244224. Its totient is φ = 4523200621056.

The previous prime is 7157705555453. The next prime is 7157705555479. The reversal of 7157705555455 is 5545555077517.

It is not a de Polignac number, because 7157705555455 - 2¹ = 7157705555453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7157705555393 and 7157705555402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157705555453) 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, 12552424 + ... + 13110253.

It is an arithmetic number, because the mean of its divisors is an integer number (330894570132).

Almost surely, 2^{7157705555455} is an apocalyptic number.

7157705555455 is a deficient number, since it is larger than the sum of its proper divisors (3430920688769).

7157705555455 is a wasteful number, since it uses less digits than its factorization.

7157705555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25663315.

The product of its (nonzero) digits is 107187500, while the sum is 61.

The spelling of 7157705555455 in words is "seven trillion, one hundred fifty-seven billion, seven hundred five million, five hundred fifty-five thousand, four hundred fifty-five".