1651655061 has 12 divisors (see below), whose sum is σ = 2726541792. Its totient is φ = 943802856.

The previous prime is 1651655053. The next prime is 1651655087. The reversal of 1651655061 is 1605561561.

It is not a de Polignac number, because 1651655061 - 2³ = 1651655053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651655011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13108311 + ... + 13108436.

It is an arithmetic number, because the mean of its divisors is an integer number (227211816).

Almost surely, 2^1651655061 is an apocalyptic number.

It is an amenable number.

1651655061 is a deficient number, since it is larger than the sum of its proper divisors (1074886731).

1651655061 is a wasteful number, since it uses less digits than its factorization.

1651655061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26216760 (or 26216757 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1651655061 is about 40640.5593096355. The cubic root of 1651655061 is about 1182.0607151854.

The spelling of 1651655061 in words is "one billion, six hundred fifty-one million, six hundred fifty-five thousand, sixty-one".