61465895406 has 24 divisors (see below), whose sum is σ = 133866145920. Its totient is φ = 20382471936.

The previous prime is 61465895311. The next prime is 61465895417. The reversal of 61465895406 is 60459856416.

61465895406 is a `hidden beast` number, since 6 + 1 + 4 + 6 + 589 + 54 + 0 + 6 = 666.

It is a super-2 number, since 2×61465895406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8843086 + ... + 8850033.

It is an arithmetic number, because the mean of its divisors is an integer number (5577756080).

Almost surely, 2^61465895406 is an apocalyptic number.

61465895406 is an abundant number, since it is smaller than the sum of its proper divisors (72400250514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61465895406 is a wasteful number, since it uses less digits than its factorization.

61465895406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17693320 (or 17693317 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 61465895406 in words is "sixty-one billion, four hundred sixty-five million, eight hundred ninety-five thousand, four hundred six".