655401166461 has 24 divisors (see below), whose sum is σ = 955798107264. Its totient is φ = 432749530080.

The previous prime is 655401166451. The next prime is 655401166501. The reversal of 655401166461 is 164661104556.

655401166461 is a `hidden beast` number, since 6 + 5 + 540 + 1 + 1 + 66 + 46 + 1 = 666.

655401166461 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 655401166461 - 2¹⁴ = 655401150077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655401166411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370785 + ... + 1203446.

It is an arithmetic number, because the mean of its divisors is an integer number (39824921136).

Almost surely, 2^655401166461 is an apocalyptic number.

It is an amenable number.

655401166461 is a deficient number, since it is larger than the sum of its proper divisors (300396940803).

655401166461 is a wasteful number, since it uses less digits than its factorization.

655401166461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574681 (or 1574678 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 655401166461 in words is "six hundred fifty-five billion, four hundred one million, one hundred sixty-six thousand, four hundred sixty-one".