2661350336464 has 40 divisors (see below), whose sum is σ = 5607240932808. Its totient is φ = 1218551500800.

The previous prime is 2661350336429. The next prime is 2661350336467. The reversal of 2661350336464 is 4646330531662.

It can be written as a sum of positive squares in 4 ways, for example, as 1610848332864 + 1050502003600 = 1269192^2 + 1024940^2 .

It is a super-2 number, since 2×2661350336464² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661350336467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132211237 + ... + 132231364.

Almost surely, 2^{2661350336464} is an apocalyptic number.

It is an amenable number.

2661350336464 is an abundant number, since it is smaller than the sum of its proper divisors (2945890596344).

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

2661350336464 is a wasteful number, since it uses less digits than its factorization.

2661350336464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264442663 (or 264442657 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 49.

The spelling of 2661350336464 in words is "two trillion, six hundred sixty-one billion, three hundred fifty million, three hundred thirty-six thousand, four hundred sixty-four".