64520083145 has 16 divisors (see below), whose sum is σ = 88498293120. Its totient is φ = 44235538944.

The previous prime is 64520083091. The next prime is 64520083183. The reversal of 64520083145 is 54138002546.

64520083145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64520083145 - 2⁸ = 64520082889 is a prime.

It is a super-2 number, since 2×64520083145² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64520083099 and 64520083108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94649 + ... + 371481.

It is an arithmetic number, because the mean of its divisors is an integer number (5531143320).

Almost surely, 2^64520083145 is an apocalyptic number.

It is an amenable number.

64520083145 is a deficient number, since it is larger than the sum of its proper divisors (23978209975).

64520083145 is a wasteful number, since it uses less digits than its factorization.

64520083145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283504.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 64520083145 in words is "sixty-four billion, five hundred twenty million, eighty-three thousand, one hundred forty-five".