2145500154064 has 10 divisors (see below), whose sum is σ = 4156906548530. Its totient is φ = 1072750077024.

The previous prime is 2145500154047. The next prime is 2145500154067. The reversal of 2145500154064 is 4604510055412.

It can be written as a sum of positive squares in only one way, i.e., 1553493017664 + 592007136400 = 1246392^2 + 769420^2 .

It is a super-2 number, since 2×2145500154064² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145500154067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67046879799 + ... + 67046879830.

It is an arithmetic number, because the mean of its divisors is an integer number (415690654853).

Almost surely, 2^{2145500154064} is an apocalyptic number.

It is an amenable number.

2145500154064 is a deficient number, since it is larger than the sum of its proper divisors (2011406394466).

2145500154064 is a wasteful number, since it uses less digits than its factorization.

2145500154064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134093759637 (or 134093759631 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 2145500154064 in words is "two trillion, one hundred forty-five billion, five hundred million, one hundred fifty-four thousand, sixty-four".