64156145532514 has 128 divisors (see below), whose sum is σ = 114309483724800. Its totient is φ = 26426697431040.

The previous prime is 64156145532491. The next prime is 64156145532569. The reversal of 64156145532514 is 41523554165146.

It is a happy number.

It is a super-2 number, since 2×64156145532514² (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 63 ways as a sum of consecutive naturals, for example, 61747974007 + ... + 61747975045.

It is an arithmetic number, because the mean of its divisors is an integer number (893042841600).

Almost surely, 2^{64156145532514} is an apocalyptic number.

64156145532514 is a deficient number, since it is larger than the sum of its proper divisors (50153338192286).

64156145532514 is a wasteful number, since it uses less digits than its factorization.

64156145532514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its digits is 8640000, while the sum is 52.

The spelling of 64156145532514 in words is "sixty-four trillion, one hundred fifty-six billion, one hundred forty-five million, five hundred thirty-two thousand, five hundred fourteen".