258036697680 has 80 divisors (see below), whose sum is σ = 805668642240. Its totient is φ = 68314742784.

The previous prime is 258036697643. The next prime is 258036697697. The reversal of 258036697680 is 86796630852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 3834097 + ... + 3900816.

It is an arithmetic number, because the mean of its divisors is an integer number (10070858028).

Almost surely, 2^258036697680 is an apocalyptic number.

258036697680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258036697680 is an abundant number, since it is smaller than the sum of its proper divisors (547631944560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258036697680 is a wasteful number, since it uses less digits than its factorization.

258036697680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735068 (or 7735062 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 258036697680 in words is "two hundred fifty-eight billion, thirty-six million, six hundred ninety-seven thousand, six hundred eighty".