15552207157 has 8 divisors (see below), whose sum is σ = 15583491000. Its totient is φ = 15520949184.

The previous prime is 15552207119. The next prime is 15552207169. The reversal of 15552207157 is 75170225551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9192782641 + 6359424516 = 95879^2 + 79746^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 15552207157 - 2¹⁵ = 15552174389 is a prime.

It is a super-2 number, since 2×15552207157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15552207197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558219 + ... + 1568167.

It is an arithmetic number, because the mean of its divisors is an integer number (1947936375).

Almost surely, 2^15552207157 is an apocalyptic number.

It is an amenable number.

15552207157 is a deficient number, since it is larger than the sum of its proper divisors (31283843).

15552207157 is an equidigital number, since it uses as much as digits as its factorization.

15552207157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935.

The product of its (nonzero) digits is 122500, while the sum is 40.

The spelling of 15552207157 in words is "fifteen billion, five hundred fifty-two million, two hundred seven thousand, one hundred fifty-seven".