1252020681615 has 32 divisors (see below), whose sum is σ = 2217962301696. Its totient is φ = 597980021760.

The previous prime is 1252020681599. The next prime is 1252020681617. The reversal of 1252020681615 is 5161860202521.

It is not a de Polignac number, because 1252020681615 - 2⁴ = 1252020681599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252020681617) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 56615842 + ... + 56637951.

It is an arithmetic number, because the mean of its divisors is an integer number (69311321928).

Almost surely, 2^{1252020681615} is an apocalyptic number.

1252020681615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252020681615 is a deficient number, since it is larger than the sum of its proper divisors (965941620081).

1252020681615 is a wasteful number, since it uses less digits than its factorization.

1252020681615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113253879.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 1252020681615 in words is "one trillion, two hundred fifty-two billion, twenty million, six hundred eighty-one thousand, six hundred fifteen".