60691332390 has 96 divisors (see below), whose sum is σ = 157845265056. Its totient is φ = 14928076800.

The previous prime is 60691332379. The next prime is 60691332413. The reversal of 60691332390 is 9323319606.

60691332390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×60691332390² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8113332 + ... + 8120808.

It is an arithmetic number, because the mean of its divisors is an integer number (1644221511).

Almost surely, 2^60691332390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60691332390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78922632528).

60691332390 is an abundant number, since it is smaller than the sum of its proper divisors (97153932666).

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

60691332390 is a wasteful number, since it uses less digits than its factorization.

60691332390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114 (or 9101 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 42.

The spelling of 60691332390 in words is "sixty billion, six hundred ninety-one million, three hundred thirty-two thousand, three hundred ninety".