61051516601505 has 16 divisors (see below), whose sum is σ = 97682523562944. Its totient is φ = 32560776520640.

The previous prime is 61051516601503. The next prime is 61051516601539. The reversal of 61051516601505 is 50510661515016.

It is not a de Polignac number, because 61051516601505 - 2¹ = 61051516601503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61051516601503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27487390 + ... + 29625320.

It is an arithmetic number, because the mean of its divisors is an integer number (6105157722684).

Almost surely, 2^{61051516601505} is an apocalyptic number.

It is an amenable number.

61051516601505 is a deficient number, since it is larger than the sum of its proper divisors (36631006961439).

61051516601505 is a wasteful number, since it uses less digits than its factorization.

61051516601505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041696.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 61051516601505 in words is "sixty-one trillion, fifty-one billion, five hundred sixteen million, six hundred one thousand, five hundred five".