155464521332 has 12 divisors (see below), whose sum is σ = 286382013120. Its totient is φ = 73641089016.

The previous prime is 155464521287. The next prime is 155464521347. The reversal of 155464521332 is 233125464551.

It is a self number, because there is not a number n which added to its sum of digits gives 155464521332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022792828 + ... + 1022792979.

It is an arithmetic number, because the mean of its divisors is an integer number (23865167760).

Almost surely, 2^155464521332 is an apocalyptic number.

It is an amenable number.

155464521332 is a deficient number, since it is larger than the sum of its proper divisors (130917491788).

155464521332 is a wasteful number, since it uses less digits than its factorization.

155464521332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045585830 (or 2045585828 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

Adding to 155464521332 its reverse (233125464551), we get a palindrome (388589985883).

The spelling of 155464521332 in words is "one hundred fifty-five billion, four hundred sixty-four million, five hundred twenty-one thousand, three hundred thirty-two".