2153536651554 has 16 divisors (see below), whose sum is σ = 4560430556448. Its totient is φ = 675619341632.

The previous prime is 2153536651531. The next prime is 2153536651559. The reversal of 2153536651554 is 4551566353512.

It is a super-2 number, since 2×2153536651554² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 2153536651497 and 2153536651506.

It is not an unprimeable number, because it can be changed into a prime (2153536651559) 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, 10556552112 + ... + 10556552315.

It is an arithmetic number, because the mean of its divisors is an integer number (285026909778).

Almost surely, 2^{2153536651554} is an apocalyptic number.

2153536651554 is an abundant number, since it is smaller than the sum of its proper divisors (2406893904894).

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

2153536651554 is a wasteful number, since it uses less digits than its factorization.

2153536651554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21113104449.

The product of its digits is 8100000, while the sum is 51.

The spelling of 2153536651554 in words is "two trillion, one hundred fifty-three billion, five hundred thirty-six million, six hundred fifty-one thousand, five hundred fifty-four".