156532143990 has 16 divisors (see below), whose sum is σ = 375677145648. Its totient is φ = 41741905056.

The previous prime is 156532143983. The next prime is 156532143991. The reversal of 156532143990 is 99341235651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156532143991) 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, 2608869037 + ... + 2608869096.

It is an arithmetic number, because the mean of its divisors is an integer number (23479821603).

Almost surely, 2^156532143990 is an apocalyptic number.

156532143990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156532143990 is an abundant number, since it is smaller than the sum of its proper divisors (219145001658).

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

156532143990 is a wasteful number, since it uses less digits than its factorization.

156532143990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217738143.

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 156532143990 in words is "one hundred fifty-six billion, five hundred thirty-two million, one hundred forty-three thousand, nine hundred ninety".