655400154465 has 32 divisors (see below), whose sum is σ = 1331606664960. Its totient is φ = 299611498752.

The previous prime is 655400154463. The next prime is 655400154467. The reversal of 655400154465 is 564451004556.

655400154465 is a `hidden beast` number, since 6 + 5 + 5 + 40 + 0 + 1 + 544 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (655400154463) and next prime (655400154467).

It is not a de Polignac number, because 655400154465 - 2¹ = 655400154463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655400154465.

It is not an unprimeable number, because it can be changed into a prime (655400154463) 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, 346771624 + ... + 346773513.

It is an arithmetic number, because the mean of its divisors is an integer number (41612708280).

Almost surely, 2^655400154465 is an apocalyptic number.

It is an amenable number.

655400154465 is an abundant number, since it is smaller than the sum of its proper divisors (676206510495).

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

655400154465 is a wasteful number, since it uses less digits than its factorization.

655400154465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693545158 (or 693545152 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 655400154465 in words is "six hundred fifty-five billion, four hundred million, one hundred fifty-four thousand, four hundred sixty-five".