120617276215551 has 32 divisors (see below), whose sum is σ = 167560545546240. Its totient is φ = 77091416409600.

The previous prime is 120617276215543. The next prime is 120617276215619. The reversal of 120617276215551 is 155512672716021.

It is not a de Polignac number, because 120617276215551 - 2³ = 120617276215543 is a prime.

It is a super-2 number, since 2×120617276215551² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120617276215494 and 120617276215503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120617276214551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63031911 + ... + 64917303.

It is an arithmetic number, because the mean of its divisors is an integer number (5236267048320).

Almost surely, 2^{120617276215551} is an apocalyptic number.

120617276215551 is a deficient number, since it is larger than the sum of its proper divisors (46943269330689).

120617276215551 is a wasteful number, since it uses less digits than its factorization.

120617276215551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891847.

The product of its (nonzero) digits is 1764000, while the sum is 51.

The spelling of 120617276215551 in words is "one hundred twenty trillion, six hundred seventeen billion, two hundred seventy-six million, two hundred fifteen thousand, five hundred fifty-one".