1655140623204 has 12 divisors (see below), whose sum is σ = 3861994787504. Its totient is φ = 551713541064.

The previous prime is 1655140623187. The next prime is 1655140623221. The reversal of 1655140623204 is 4023260415561.

It is an interprime number because it is at equal distance from previous prime (1655140623187) and next prime (1655140623221).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68964192622 + ... + 68964192645.

Almost surely, 2^{1655140623204} is an apocalyptic number.

It is an amenable number.

1655140623204 is an abundant number, since it is smaller than the sum of its proper divisors (2206854164300).

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

1655140623204 is a wasteful number, since it uses less digits than its factorization.

1655140623204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137928385274 (or 137928385272 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 1655140623204 in words is "one trillion, six hundred fifty-five billion, one hundred forty million, six hundred twenty-three thousand, two hundred four".