60505616511551 has 8 divisors (see below), whose sum is σ = 60562360091904. Its totient is φ = 60448874919840.

The previous prime is 60505616511523. The next prime is 60505616511581. The reversal of 60505616511551 is 15511561650506.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60505616511551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60505616511496 and 60505616511505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60505616511581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64341221 + ... + 65274833.

It is an arithmetic number, because the mean of its divisors is an integer number (7570295011488).

Almost surely, 2^{60505616511551} is an apocalyptic number.

60505616511551 is a deficient number, since it is larger than the sum of its proper divisors (56743580353).

60505616511551 is a wasteful number, since it uses less digits than its factorization.

60505616511551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994321.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 60505616511551 in words is "sixty trillion, five hundred five billion, six hundred sixteen million, five hundred eleven thousand, five hundred fifty-one".