11623535451553 has 8 divisors (see below), whose sum is σ = 11635700110056. Its totient is φ = 11611372560000.

The previous prime is 11623535451509. The next prime is 11623535451581. The reversal of 11623535451553 is 35515453532611.

It can be written as a sum of positive squares in 4 ways, for example, as 6716349094464 + 4907186357089 = 2591592^2 + 2215217^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11623535451553 is a prime.

It is a super-2 number, since 2×11623535451553² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11623535451497 and 11623535451506.

It is not an unprimeable number, because it can be changed into a prime (11623535401553) 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, 12933303 + ... + 13802803.

It is an arithmetic number, because the mean of its divisors is an integer number (1454462513757).

Almost surely, 2^{11623535451553} is an apocalyptic number.

It is an amenable number.

11623535451553 is a deficient number, since it is larger than the sum of its proper divisors (12164658503).

11623535451553 is a wasteful number, since it uses less digits than its factorization.

11623535451553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883475.

The product of its digits is 4050000, while the sum is 49.

The spelling of 11623535451553 in words is "eleven trillion, six hundred twenty-three billion, five hundred thirty-five million, four hundred fifty-one thousand, five hundred fifty-three".