2658055780 has 24 divisors (see below), whose sum is σ = 5598794880. Its totient is φ = 1060007520.

The previous prime is 2658055739. The next prime is 2658055781. The reversal of 2658055780 is 875508562.

It is a self number, because there is not a number n which added to its sum of digits gives 2658055780.

It is not an unprimeable number, because it can be changed into a prime (2658055781) 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, 194140 + ... + 207379.

It is an arithmetic number, because the mean of its divisors is an integer number (233283120).

Almost surely, 2^2658055780 is an apocalyptic number.

2658055780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2658055780 is an abundant number, since it is smaller than the sum of its proper divisors (2940739100).

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

2658055780 is a wasteful number, since it uses less digits than its factorization.

2658055780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401859 (or 401857 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 2658055780 is about 51556.3359830778. The cubic root of 2658055780 is about 1385.2283253837.

The spelling of 2658055780 in words is "two billion, six hundred fifty-eight million, fifty-five thousand, seven hundred eighty".