60721521011154 has 24 divisors (see below), whose sum is σ = 131564361857292. Its totient is φ = 20240342952480.

The previous prime is 60721521011143. The next prime is 60721521011191. The reversal of 60721521011154 is 45111012512706.

60721521011154 is a `hidden beast` number, since 6 + 0 + 72 + 1 + 521 + 0 + 1 + 11 + 54 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60693089992929 + 28431018225 = 7790577^2 + 168615^2 .

It is a super-2 number, since 2×60721521011154² (a number of 28 digits) contains 22 as substring.

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, 11378029 + ... + 15839904.

Almost surely, 2^{60721521011154} is an apocalyptic number.

60721521011154 is an abundant number, since it is smaller than the sum of its proper divisors (70842840846138).

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

60721521011154 is a wasteful number, since it uses less digits than its factorization.

60721521011154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27341882 (or 27341879 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The spelling of 60721521011154 in words is "sixty trillion, seven hundred twenty-one billion, five hundred twenty-one million, eleven thousand, one hundred fifty-four".