611232553404 has 36 divisors (see below), whose sum is σ = 1685520072600. Its totient is φ = 185221985760.

The previous prime is 611232553403. The next prime is 611232553427. The reversal of 611232553404 is 404355232116.

611232553404 is a `hidden beast` number, since 6 + 11 + 232 + 5 + 5 + 3 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611232553403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771757879 + ... + 771758670.

Almost surely, 2^611232553404 is an apocalyptic number.

It is an amenable number.

611232553404 is an abundant number, since it is smaller than the sum of its proper divisors (1074287519196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611232553404 is a wasteful number, since it uses less digits than its factorization.

611232553404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543516570 (or 1543516565 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 611232553404 in words is "six hundred eleven billion, two hundred thirty-two million, five hundred fifty-three thousand, four hundred four".