61497632255 has 8 divisors (see below), whose sum is σ = 73800633600. Its totient is φ = 49195789216.

The previous prime is 61497632221. The next prime is 61497632269. The reversal of 61497632255 is 55223679416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61497632255 - 2⁸ = 61497631999 is a prime.

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, 168140 + ... + 388929.

It is an arithmetic number, because the mean of its divisors is an integer number (9225079200).

Almost surely, 2^61497632255 is an apocalyptic number.

61497632255 is a deficient number, since it is larger than the sum of its proper divisors (12303001345).

61497632255 is a wasteful number, since it uses less digits than its factorization.

61497632255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579153.

The product of its digits is 2721600, while the sum is 50.

The spelling of 61497632255 in words is "sixty-one billion, four hundred ninety-seven million, six hundred thirty-two thousand, two hundred fifty-five".