61611477336 has 48 divisors (see below), whose sum is σ = 171153126600. Its totient is φ = 20535943104.

The previous prime is 61611477313. The next prime is 61611477391. The reversal of 61611477336 is 63377411616.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a junction number, because it is equal to n+sod(n) for n = 61611477291 and 61611477300.

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, 3639580 + ... + 3656468.

Almost surely, 2^61611477336 is an apocalyptic number.

It is an amenable number.

61611477336 is an abundant number, since it is smaller than the sum of its proper divisors (109541649264).

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

61611477336 is an frugal number, since it uses more digits than its factorization.

61611477336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33793 (or 16894 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The spelling of 61611477336 in words is "sixty-one billion, six hundred eleven million, four hundred seventy-seven thousand, three hundred thirty-six".