1605010056 has 32 divisors (see below), whose sum is σ = 4321181760. Its totient is φ = 493849152.

The previous prime is 1605010037. The next prime is 1605010061. The reversal of 1605010056 is 6500105061.

It is a super-2 number, since 2×1605010056² = 5152114559722246272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2571820 + ... + 2572443.

It is an arithmetic number, because the mean of its divisors is an integer number (135036930).

Almost surely, 2^1605010056 is an apocalyptic number.

It is an amenable number.

1605010056 is an abundant number, since it is smaller than the sum of its proper divisors (2716171704).

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

1605010056 is a wasteful number, since it uses less digits than its factorization.

1605010056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144285 (or 5144281 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1605010056 is about 40062.5767518766. The cubic root of 1605010056 is about 1170.8266143334.

It can be divided in two parts, 16050 and 10056, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 1605010056 in words is "one billion, six hundred five million, ten thousand, fifty-six".