2150661633454 has 8 divisors (see below), whose sum is σ = 3232727300160. Its totient is φ = 1073085866736.

The previous prime is 2150661633409. The next prime is 2150661633457. The reversal of 2150661633454 is 4543361660512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2150661633454² (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 (2150661633457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122473799 + ... + 1122475714.

It is an arithmetic number, because the mean of its divisors is an integer number (404090912520).

Almost surely, 2^{2150661633454} is an apocalyptic number.

2150661633454 is a deficient number, since it is larger than the sum of its proper divisors (1082065666706).

2150661633454 is a wasteful number, since it uses less digits than its factorization.

2150661633454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244949994.

The product of its (nonzero) digits is 1555200, while the sum is 46.

It can be divided in two parts, 21506 and 61633454, that added together give a triangular number (61654960 = T₁₁₁₀₄).

The spelling of 2150661633454 in words is "two trillion, one hundred fifty billion, six hundred sixty-one million, six hundred thirty-three thousand, four hundred fifty-four".