151820431536 has 80 divisors (see below), whose sum is σ = 397010117504. Its totient is φ = 49988524032.

The previous prime is 151820431493. The next prime is 151820431541. The reversal of 151820431536 is 635134028151.

It is a junction number, because it is equal to n+sod(n) for n = 151820431494 and 151820431503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2403915 + ... + 2466261.

Almost surely, 2^151820431536 is an apocalyptic number.

151820431536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151820431536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198505058752).

151820431536 is an abundant number, since it is smaller than the sum of its proper divisors (245189685968).

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

151820431536 is a wasteful number, since it uses less digits than its factorization.

151820431536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62978 (or 62972 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 151820431536 its reverse (635134028151), we get a palindrome (786954459687).

The spelling of 151820431536 in words is "one hundred fifty-one billion, eight hundred twenty million, four hundred thirty-one thousand, five hundred thirty-six".