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66620300152 = 2371189648217
BaseRepresentation
bin111110000010111000…
…010001101101111000
320100221212211220021011
4332002320101231320
52042414244101102
650334400123304
74545625131220
oct760270215570
9210855756234
1066620300152
11262874715aa
1210ab3006534
1363891ab763
14331dc11080
151aeda682d7
hexf82e11b78

66620300152 has 16 divisors (see below), whose sum is σ = 142757786160. Its totient is φ = 28551557184.

The previous prime is 66620300119. The next prime is 66620300183. The reversal of 66620300152 is 25100302666.

66620300152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594824053 + ... + 594824164.

It is an arithmetic number, because the mean of its divisors is an integer number (8922361635).

Almost surely, 266620300152 is an apocalyptic number.

It is an amenable number.

66620300152 is an abundant number, since it is smaller than the sum of its proper divisors (76137486008).

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

66620300152 is a wasteful number, since it uses less digits than its factorization.

66620300152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189648230 (or 1189648226 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 66620300152 in words is "sixty-six billion, six hundred twenty million, three hundred thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 1189648217 2379296434 4758592868 8327537519 9517185736 16655075038 33310150076 66620300152