656498106 has 48 divisors (see below), whose sum is σ = 1558327680. Its totient is φ = 198092160.

The previous prime is 656498083. The next prime is 656498107. The reversal of 656498106 is 601894656.

656498106 is a `hidden beast` number, since 6 + 56 + 498 + 106 = 666.

It is not an unprimeable number, because it can be changed into a prime (656498107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40386 + ... + 54258.

It is an arithmetic number, because the mean of its divisors is an integer number (32465160).

Almost surely, 2^656498106 is an apocalyptic number.

656498106 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 656498106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779163840).

656498106 is an abundant number, since it is smaller than the sum of its proper divisors (901829574).

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

656498106 is a wasteful number, since it uses less digits than its factorization.

656498106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14131 (or 14128 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 656498106 is about 25622.2189905558. The cubic root of 656498106 is about 869.1161614635.

The spelling of 656498106 in words is "six hundred fifty-six million, four hundred ninety-eight thousand, one hundred six".