671155501301055 has 12 divisors (see below), whose sum is σ = 1163336202255240. Its totient is φ = 357949600693872.

The previous prime is 671155501301017. The next prime is 671155501301063. The reversal of 671155501301055 is 550103105551176.

671155501301055 is a `hidden beast` number, since 6 + 7 + 1 + 1 + 5 + 5 + 501 + 30 + 105 + 5 = 666.

It is not a de Polignac number, because 671155501301055 - 2¹³ = 671155501292863 is a prime.

It is a super-2 number, since 2×671155501301055² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14914566695579 = 671155501301055 / (6 + 7 + 1 + 1 + 5 + 5 + 5 + 0 + 1 + 3 + 0 + 1 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 671155501301055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7457283347745 + ... + 7457283347834.

It is an arithmetic number, because the mean of its divisors is an integer number (96944683521270).

Almost surely, 2^{671155501301055} is an apocalyptic number.

671155501301055 is a deficient number, since it is larger than the sum of its proper divisors (492180700954185).

671155501301055 is a wasteful number, since it uses less digits than its factorization.

671155501301055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14914566695590 (or 14914566695587 counting only the distinct ones).

The product of its (nonzero) digits is 393750, while the sum is 45.

The spelling of 671155501301055 in words is "six hundred seventy-one trillion, one hundred fifty-five billion, five hundred one million, three hundred one thousand, fifty-five".