120215102526557 has 8 divisors (see below), whose sum is σ = 120614758043640. Its totient is φ = 119815546256640.

The previous prime is 120215102526509. The next prime is 120215102526577. The reversal of 120215102526557 is 755625201512021.

It can be written as a sum of positive squares in 4 ways, for example, as 7512801420601 + 112702301105956 = 2740949^2 + 10616134^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120215102526557 - 2²² = 120215098332253 is a prime.

It is a super-2 number, since 2×120215102526557² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120215102526577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22384832 + ... + 27230697.

It is an arithmetic number, because the mean of its divisors is an integer number (15076844755455).

Almost surely, 2^{120215102526557} is an apocalyptic number.

It is an amenable number.

120215102526557 is a deficient number, since it is larger than the sum of its proper divisors (399655517083).

120215102526557 is an equidigital number, since it uses as much as digits as its factorization.

120215102526557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49623583.

The product of its (nonzero) digits is 420000, while the sum is 44.

The spelling of 120215102526557 in words is "one hundred twenty trillion, two hundred fifteen billion, one hundred two million, five hundred twenty-six thousand, five hundred fifty-seven".