954156450132661 has 16 divisors (see below), whose sum is σ = 978913381401648. Its totient is φ = 929470316544000.

The previous prime is 954156450132631. The next prime is 954156450132707. The reversal of 954156450132661 is 166231054651459.

It can be written as a sum of positive squares in 8 ways, for example, as 8733242502436 + 945423207630225 = 2955206^2 + 30747735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-954156450132661 is a prime.

It is a super-2 number, since 2×954156450132661² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 954156450132596 and 954156450132605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (954156450132631) 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, 854190211 + ... + 855306511.

It is an arithmetic number, because the mean of its divisors is an integer number (61182086337603).

Almost surely, 2^{954156450132661} is an apocalyptic number.

It is an amenable number.

954156450132661 is a deficient number, since it is larger than the sum of its proper divisors (24756931268987).

954156450132661 is a wasteful number, since it uses less digits than its factorization.

954156450132661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147992.

The product of its (nonzero) digits is 23328000, while the sum is 58.

The spelling of 954156450132661 in words is "nine hundred fifty-four trillion, one hundred fifty-six billion, four hundred fifty million, one hundred thirty-two thousand, six hundred sixty-one".