953417061621 has 16 divisors (see below), whose sum is σ = 1412537723520. Its totient is φ = 635580773280.

The previous prime is 953417061607. The next prime is 953417061671. The reversal of 953417061621 is 126160714359.

953417061621 is a `hidden beast` number, since 9 + 5 + 3 + 4 + 1 + 7 + 0 + 616 + 21 = 666.

It is not a de Polignac number, because 953417061621 - 2⁶ = 953417061557 is a prime.

It is a super-2 number, since 2×953417061621² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (953417061671) 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, 271680 + ... + 1407353.

It is an arithmetic number, because the mean of its divisors is an integer number (88283607720).

Almost surely, 2^953417061621 is an apocalyptic number.

It is an amenable number.

953417061621 is a deficient number, since it is larger than the sum of its proper divisors (459120661899).

953417061621 is a wasteful number, since it uses less digits than its factorization.

953417061621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700073 (or 1700067 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 953417061621 in words is "nine hundred fifty-three billion, four hundred seventeen million, sixty-one thousand, six hundred twenty-one".