60999370021920 has 192 divisors, whose sum is σ = 216844156045440. Its totient is φ = 14277804441600.

The previous prime is 60999370021883. The next prime is 60999370021963. The reversal of 60999370021920 is 2912007399906.

It is a super-2 number, since 2×60999370021920² (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 31 ways as a sum of consecutive naturals, for example, 199035001 + ... + 199341240.

It is an arithmetic number, because the mean of its divisors is an integer number (1129396646070).

Almost surely, 2^{60999370021920} is an apocalyptic number.

60999370021920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60999370021920 is an abundant number, since it is smaller than the sum of its proper divisors (155844786023520).

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

60999370021920 is a wasteful number, since it uses less digits than its factorization.

60999370021920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398376299 (or 398376291 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 57.

The spelling of 60999370021920 in words is "sixty trillion, nine hundred ninety-nine billion, three hundred seventy million, twenty-one thousand, nine hundred twenty".