66380454703080 has 192 divisors, whose sum is σ = 246741786570240. Its totient is φ = 15161240779776.

The previous prime is 66380454703033. The next prime is 66380454703091. The reversal of 66380454703080 is 8030745408366.

66380454703080 is a `hidden beast` number, since 6 + 6 + 3 + 80 + 454 + 7 + 0 + 30 + 80 = 666.

It is a super-2 number, since 2×66380454703080² (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 47 ways as a sum of consecutive naturals, for example, 6581149 + ... + 13269228.

It is an arithmetic number, because the mean of its divisors is an integer number (1285113471720).

Almost surely, 2^{66380454703080} is an apocalyptic number.

66380454703080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66380454703080 is an abundant number, since it is smaller than the sum of its proper divisors (180361331867160).

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

66380454703080 is a wasteful number, since it uses less digits than its factorization.

66380454703080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19851728 (or 19851721 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 66380454703080 in words is "sixty-six trillion, three hundred eighty billion, four hundred fifty-four million, seven hundred three thousand, eighty".