157132321550 has 24 divisors (see below), whose sum is σ = 292604861376. Its totient is φ = 62780080640.

The previous prime is 157132321469. The next prime is 157132321559. The reversal of 157132321550 is 55123231751.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 157132321550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157132321559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1777619 + ... + 1863918.

It is an arithmetic number, because the mean of its divisors is an integer number (12191869224).

Almost surely, 2^157132321550 is an apocalyptic number.

157132321550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157132321550 is a deficient number, since it is larger than the sum of its proper divisors (135472539826).

157132321550 is a wasteful number, since it uses less digits than its factorization.

157132321550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642412 (or 3642407 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 157132321550 in words is "one hundred fifty-seven billion, one hundred thirty-two million, three hundred twenty-one thousand, five hundred fifty".