651059880 has 64 divisors (see below), whose sum is σ = 2068079040. Its totient is φ = 163402752.

The previous prime is 651059879. The next prime is 651059887. The reversal of 651059880 is 88950156.

It is a super-2 number, since 2×651059880² = 847757934691228800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (651059887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157534 + ... + 161613.

It is an arithmetic number, because the mean of its divisors is an integer number (32313735).

Almost surely, 2^651059880 is an apocalyptic number.

651059880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651059880 is an abundant number, since it is smaller than the sum of its proper divisors (1417019160).

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

651059880 is a wasteful number, since it uses less digits than its factorization.

651059880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319178 (or 319174 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 651059880 is about 25515.8750584807. The cubic root of 651059880 is about 866.7096750517.

The spelling of 651059880 in words is "six hundred fifty-one million, fifty-nine thousand, eight hundred eighty".