61610662551416 has 32 divisors (see below), whose sum is σ = 126032033559600. Its totient is φ = 28002574659840.

The previous prime is 61610662551343. The next prime is 61610662551469. The reversal of 61610662551416 is 61415526601616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27308315 + ... + 29478218.

Almost surely, 2^{61610662551416} is an apocalyptic number.

It is an amenable number.

61610662551416 is an abundant number, since it is smaller than the sum of its proper divisors (64421371008184).

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

61610662551416 is a wasteful number, since it uses less digits than its factorization.

61610662551416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56798879 (or 56798875 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 61610662551416 in words is "sixty-one trillion, six hundred ten billion, six hundred sixty-two million, five hundred fifty-one thousand, four hundred sixteen".