1010115656 has 128 divisors (see below), whose sum is σ = 2358927360. Its totient is φ = 399590400.

The previous prime is 1010115649. The next prime is 1010115661. The reversal of 1010115656 is 6565110101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1066175 + ... + 1067121.

It is an arithmetic number, because the mean of its divisors is an integer number (18429120).

Almost surely, 2^1010115656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010115656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179463680).

1010115656 is an abundant number, since it is smaller than the sum of its proper divisors (1348811704).

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

1010115656 is a wasteful number, since it uses less digits than its factorization.

1010115656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1010115656 is about 31782.3167185780. The cubic root of 1010115656 is about 1003.3605791899.

Adding to 1010115656 its reverse (6565110101), we get a palindrome (7575225757).

The spelling of 1010115656 in words is "one billion, ten million, one hundred fifteen thousand, six hundred fifty-six".