494516146322961 has 63 divisors (see below), whose sum is σ = 833388834886153. Its totient is φ = 282567579262920.

The previous prime is 494516146322953. The next prime is 494516146323013. The reversal of 494516146322961 is 169223641615494.

The square root of 494516146322961 is 22237719.

It is a perfect power (a square), and thus also a powerful number.

494516146322961 is a `hidden beast` number, since 4 + 9 + 4 + 5 + 1 + 61 + 463 + 22 + 96 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (63).

It is not a de Polignac number, because 494516146322961 - 2³ = 494516146322953 is a prime.

It is a super-2 number, since 2×494516146322961² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (494516146322941) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 22882602046 + ... + 22882623656.

Almost surely, 2^{494516146322961} is an apocalyptic number.

494516146322961 is the 22237719-th square number.

494516146322961 is the 11118860-th centered octagonal number.

It is an amenable number.

494516146322961 is a deficient number, since it is larger than the sum of its proper divisors (338872688563192).

494516146322961 is an frugal number, since it uses more digits than its factorization.

494516146322961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43270 (or 21621 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 494516146322961 in words is "four hundred ninety-four trillion, five hundred sixteen billion, one hundred forty-six million, three hundred twenty-two thousand, nine hundred sixty-one".