64145655654146 has 32 divisors (see below), whose sum is σ = 105388510703616. Its totient is φ = 29039882242000.

The previous prime is 64145655654137. The next prime is 64145655654169.

It is a happy number.

64145655654146 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64145655654146² (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 15 ways as a sum of consecutive naturals, for example, 469490 + ... + 11336301.

It is an arithmetic number, because the mean of its divisors is an integer number (3293390959488).

Almost surely, 2^{64145655654146} is an apocalyptic number.

64145655654146 is a deficient number, since it is larger than the sum of its proper divisors (41242855049470).

64145655654146 is a wasteful number, since it uses less digits than its factorization.

64145655654146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11806798.

The product of its digits is 207360000, while the sum is 62.

The spelling of 64145655654146 in words is "sixty-four trillion, one hundred forty-five billion, six hundred fifty-five million, six hundred fifty-four thousand, one hundred forty-six".