101777770255 has 16 divisors (see below), whose sum is σ = 139586817600. Its totient is φ = 69787533312.

The previous prime is 101777770219. The next prime is 101777770267. The reversal of 101777770255 is 552077777101.

It is a happy number.

It is not a de Polignac number, because 101777770255 - 2²⁵ = 101744215823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101777770199 and 101777770208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083921 + ... + 1174069.

It is an arithmetic number, because the mean of its divisors is an integer number (8724176100).

Almost surely, 2^101777770255 is an apocalyptic number.

101777770255 is a deficient number, since it is larger than the sum of its proper divisors (37809047345).

101777770255 is an equidigital number, since it uses as much as digits as its factorization.

101777770255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122418.

The product of its (nonzero) digits is 840350, while the sum is 49.

The spelling of 101777770255 in words is "one hundred one billion, seven hundred seventy-seven million, seven hundred seventy thousand, two hundred fifty-five".