2154535162644 has 24 divisors (see below), whose sum is σ = 5027377350240. Its totient is φ = 718160010784.

The previous prime is 2154535162643. The next prime is 2154535162667. The reversal of 2154535162644 is 4462615354512.

It is a junction number, because it is equal to n+sod(n) for n = 2154535162593 and 2154535162602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154535162643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1804359 + ... + 2750414.

It is an arithmetic number, because the mean of its divisors is an integer number (209474056260).

Almost surely, 2^{2154535162644} is an apocalyptic number.

It is an amenable number.

2154535162644 is an abundant number, since it is smaller than the sum of its proper divisors (2872842187596).

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

2154535162644 is a wasteful number, since it uses less digits than its factorization.

2154535162644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594199 (or 4594197 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 48.

The spelling of 2154535162644 in words is "two trillion, one hundred fifty-four billion, five hundred thirty-five million, one hundred sixty-two thousand, six hundred forty-four".