190277470655 has 4 divisors (see below), whose sum is σ = 228332964792. Its totient is φ = 152221976520.

The previous prime is 190277470637. The next prime is 190277470693. The reversal of 190277470655 is 556074772091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556074772091 = 98867 ⋅5624473.

It is not a de Polignac number, because 190277470655 - 2¹² = 190277466559 is a prime.

It is a super-2 number, since 2×190277470655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190277470597 and 190277470606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19027747061 + ... + 19027747070.

It is an arithmetic number, because the mean of its divisors is an integer number (57083241198).

Almost surely, 2^190277470655 is an apocalyptic number.

190277470655 is a deficient number, since it is larger than the sum of its proper divisors (38055494137).

190277470655 is an equidigital number, since it uses as much as digits as its factorization.

190277470655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38055494136.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 190277470655 in words is "one hundred ninety billion, two hundred seventy-seven million, four hundred seventy thousand, six hundred fifty-five".