150621555431431 has 32 divisors (see below), whose sum is σ = 176176400256000. Its totient is φ = 128719280602080.

The previous prime is 150621555431401. The next prime is 150621555431447. The reversal of 150621555431431 is 134134555126051.

It is not a de Polignac number, because 150621555431431 - 2¹³ = 150621555423239 is a prime.

It is a super-2 number, since 2×150621555431431² (a number of 29 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 (150621555431401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159616926 + ... + 160557796.

It is an arithmetic number, because the mean of its divisors is an integer number (5505512508000).

Almost surely, 2^{150621555431431} is an apocalyptic number.

150621555431431 is a deficient number, since it is larger than the sum of its proper divisors (25554844824569).

150621555431431 is an frugal number, since it uses more digits than its factorization.

150621555431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942284 (or 942270 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 150621555431431 in words is "one hundred fifty trillion, six hundred twenty-one billion, five hundred fifty-five million, four hundred thirty-one thousand, four hundred thirty-one".