1656906102 has 48 divisors (see below), whose sum is σ = 3694294032. Its totient is φ = 536310720.

The previous prime is 1656906079. The next prime is 1656906133. The reversal of 1656906102 is 2016096561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378108 + ... + 382464.

It is an arithmetic number, because the mean of its divisors is an integer number (76964459).

Almost surely, 2^1656906102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1656906102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847147016).

1656906102 is an abundant number, since it is smaller than the sum of its proper divisors (2037387930).

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

1656906102 is a wasteful number, since it uses less digits than its factorization.

1656906102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973 (or 4970 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1656906102 is about 40705.1114972063. Note that the first 3 decimals coincide. The cubic root of 1656906102 is about 1183.3120827941.

The spelling of 1656906102 in words is "one billion, six hundred fifty-six million, nine hundred six thousand, one hundred two".