2251026660 has 24 divisors (see below), whose sum is σ = 6302874816. Its totient is φ = 600273760.

The previous prime is 2251026643. The next prime is 2251026677. The reversal of 2251026660 is 666201522.

It is an interprime number because it is at equal distance from previous prime (2251026643) and next prime (2251026677).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18758496 + ... + 18758615.

It is an arithmetic number, because the mean of its divisors is an integer number (262619784).

Almost surely, 2^2251026660 is an apocalyptic number.

2251026660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251026660 is an abundant number, since it is smaller than the sum of its proper divisors (4051848156).

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

2251026660 is a wasteful number, since it uses less digits than its factorization.

2251026660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37517123 (or 37517121 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2251026660 is about 47444.9856149204. The cubic root of 2251026660 is about 1310.5699712695.

The spelling of 2251026660 in words is "two billion, two hundred fifty-one million, twenty-six thousand, six hundred sixty".