60651555840 has 792 divisors, whose sum is σ = 231087795120. Its totient is φ = 15235153920.

The previous prime is 60651555829. The next prime is 60651555851. The reversal of 60651555840 is 4855515606.

60651555840 is a `hidden beast` number, since 6 + 0 + 6 + 51 + 5 + 558 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (60651555829) and next prime (60651555851).

It is a super-2 number, since 2×60651555840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1479306220 + ... + 1479306260.

Almost surely, 2^60651555840 is an apocalyptic number.

60651555840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60651555840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115543897560).

60651555840 is an abundant number, since it is smaller than the sum of its proper divisors (170436239280).

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

60651555840 is an equidigital number, since it uses as much as digits as its factorization.

60651555840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The spelling of 60651555840 in words is "sixty billion, six hundred fifty-one million, five hundred fifty-five thousand, eight hundred forty".