2156652201054 has 64 divisors (see below), whose sum is σ = 4678872307200. Its totient is φ = 658765215360.

The previous prime is 2156652201047. The next prime is 2156652201059. The reversal of 2156652201054 is 4501022566512.

It is a super-2 number, since 2×2156652201054² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156652201059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21229209 + ... + 21330555.

It is an arithmetic number, because the mean of its divisors is an integer number (73107379800).

Almost surely, 2^{2156652201054} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156652201054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2339436153600).

2156652201054 is an abundant number, since it is smaller than the sum of its proper divisors (2522220106146).

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

2156652201054 is a wasteful number, since it uses less digits than its factorization.

2156652201054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103345.

The product of its (nonzero) digits is 144000, while the sum is 39.

Adding to 2156652201054 its reverse (4501022566512), we get a palindrome (6657674767566).

It can be divided in two parts, 2156652 and 201054, that added together give a triangular number (2357706 = T₂₁₇₁).

The spelling of 2156652201054 in words is "two trillion, one hundred fifty-six billion, six hundred fifty-two million, two hundred one thousand, fifty-four".