61551006009601 has 4 divisors (see below), whose sum is σ = 61565920238592. Its totient is φ = 61536091780612.

The previous prime is 61551006009599. The next prime is 61551006009611. The reversal of 61551006009601 is 10690060015516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61551006009601 - 2¹ = 61551006009599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61551006009611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7457108305 + ... + 7457116558.

It is an arithmetic number, because the mean of its divisors is an integer number (15391480059648).

Almost surely, 2^{61551006009601} is an apocalyptic number.

It is an amenable number.

61551006009601 is a deficient number, since it is larger than the sum of its proper divisors (14914228991).

61551006009601 is a wasteful number, since it uses less digits than its factorization.

61551006009601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14914228990.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 61551006009601 in words is "sixty-one trillion, five hundred fifty-one billion, six million, nine thousand, six hundred one".