156553045231 has 8 divisors (see below), whose sum is σ = 170793090000. Its totient is φ = 142314325440.

The previous prime is 156553045217. The next prime is 156553045249. The reversal of 156553045231 is 132540355651.

It is a happy number.

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 156553045231 - 2¹¹ = 156553043183 is a prime.

It is a super-2 number, since 2×156553045231² (a number of 23 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 (156553045211) 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, 75606 + ... + 564643.

It is an arithmetic number, because the mean of its divisors is an integer number (21349136250).

Almost surely, 2^156553045231 is an apocalyptic number.

156553045231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

156553045231 is a deficient number, since it is larger than the sum of its proper divisors (14240044769).

156553045231 is a wasteful number, since it uses less digits than its factorization.

156553045231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662489.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 156553045231 in words is "one hundred fifty-six billion, five hundred fifty-three million, forty-five thousand, two hundred thirty-one".