1005655156 has 48 divisors (see below), whose sum is σ = 1990578240. Its totient is φ = 440357120.

The previous prime is 1005655073. The next prime is 1005655171. The reversal of 1005655156 is 6515565001.

It is a super-2 number, since 2×1005655156² = 2022684585578768672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054776 + ... + 1055728.

It is an arithmetic number, because the mean of its divisors is an integer number (41470380).

Almost surely, 2^1005655156 is an apocalyptic number.

It is an amenable number.

1005655156 is a deficient number, since it is larger than the sum of its proper divisors (984923084).

1005655156 is a wasteful number, since it uses less digits than its factorization.

1005655156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824 (or 1822 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1005655156 is about 31712.0664101222. The cubic root of 1005655156 is about 1001.8815097010.

The spelling of 1005655156 in words is "one billion, five million, six hundred fifty-five thousand, one hundred fifty-six".