465721058661 has 16 divisors (see below), whose sum is σ = 625363200000. Its totient is φ = 308281373888.

The previous prime is 465721058657. The next prime is 465721058687. The reversal of 465721058661 is 166850127564.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 465721058661 - 2² = 465721058657 is a prime.

It is a super-2 number, since 2×465721058661² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465721058861) 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, 1007215 + ... + 1394963.

It is an arithmetic number, because the mean of its divisors is an integer number (39085200000).

Almost surely, 2^465721058661 is an apocalyptic number.

It is an amenable number.

465721058661 is a deficient number, since it is larger than the sum of its proper divisors (159642141339).

465721058661 is a wasteful number, since it uses less digits than its factorization.

465721058661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390588.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 465721058661 in words is "four hundred sixty-five billion, seven hundred twenty-one million, fifty-eight thousand, six hundred sixty-one".