9651464551061 has 16 divisors (see below), whose sum is σ = 9933541732080. Its totient is φ = 9373139443200.

The previous prime is 9651464551051. The next prime is 9651464551087. The reversal of 9651464551061 is 1601554641569.

It can be written as a sum of positive squares in 8 ways, for example, as 97090820836 + 9554373730225 = 311594^2 + 3091015^2 .

It is a cyclic number.

It is not a de Polignac number, because 9651464551061 - 2³⁴ = 9634284681877 is a prime.

It is a super-2 number, since 2×9651464551061² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9651464550994 and 9651464551012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9651464551051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20282855 + ... + 20753243.

It is an arithmetic number, because the mean of its divisors is an integer number (620846358255).

Almost surely, 2^{9651464551061} is an apocalyptic number.

It is an amenable number.

9651464551061 is a deficient number, since it is larger than the sum of its proper divisors (282077181019).

9651464551061 is a wasteful number, since it uses less digits than its factorization.

9651464551061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474376.

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 9651464551061 in words is "nine trillion, six hundred fifty-one billion, four hundred sixty-four million, five hundred fifty-one thousand, sixty-one".