2661150154472 has 8 divisors (see below), whose sum is σ = 4989656539650. Its totient is φ = 1330575077232.

The previous prime is 2661150154457. The next prime is 2661150154483. The reversal of 2661150154472 is 2744510511662.

It can be written as a sum of positive squares in only one way, i.e., 2184738223396 + 476411931076 = 1478086^2 + 690226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 166321884647 + ... + 166321884662.

Almost surely, 2^{2661150154472} is an apocalyptic number.

It is an amenable number.

2661150154472 is a deficient number, since it is larger than the sum of its proper divisors (2328506385178).

2661150154472 is a wasteful number, since it uses less digits than its factorization.

2661150154472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332643769315 (or 332643769311 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 2661150154472 in words is "two trillion, six hundred sixty-one billion, one hundred fifty million, one hundred fifty-four thousand, four hundred seventy-two".