611402136455 has 32 divisors (see below), whose sum is σ = 839377382400. Its totient is φ = 423185748480.

The previous prime is 611402136437. The next prime is 611402136463. The reversal of 611402136455 is 554631204116.

611402136455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 611402136455 - 2²⁴ = 611385359239 is a prime.

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, 962642 + ... + 1466111.

It is an arithmetic number, because the mean of its divisors is an integer number (26230543200).

Almost surely, 2^611402136455 is an apocalyptic number.

611402136455 is a deficient number, since it is larger than the sum of its proper divisors (227975245945).

611402136455 is a wasteful number, since it uses less digits than its factorization.

611402136455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428991.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 611402136455 in words is "six hundred eleven billion, four hundred two million, one hundred thirty-six thousand, four hundred fifty-five".