611606665454 has 16 divisors (see below), whose sum is σ = 925909826688. Its totient is φ = 302981986872.

The previous prime is 611606665433. The next prime is 611606665459. The reversal of 611606665454 is 454566606116.

611606665454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×611606665454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611606665459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2879804 + ... + 3084879.

It is an arithmetic number, because the mean of its divisors is an integer number (57869364168).

Almost surely, 2^611606665454 is an apocalyptic number.

611606665454 is a deficient number, since it is larger than the sum of its proper divisors (314303161234).

611606665454 is a wasteful number, since it uses less digits than its factorization.

611606665454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965159.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 611606665454 in words is "six hundred eleven billion, six hundred six million, six hundred sixty-five thousand, four hundred fifty-four".