155325431432 has 8 divisors (see below), whose sum is σ = 291235183950. Its totient is φ = 77662715712.

The previous prime is 155325431423. The next prime is 155325431441. The reversal of 155325431432 is 234134523551.

It is an interprime number because it is at equal distance from previous prime (155325431423) and next prime (155325431441).

It can be written as a sum of positive squares in only one way, i.e., 107960873476 + 47364557956 = 328574^2 + 217634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9707839457 + ... + 9707839472.

Almost surely, 2^155325431432 is an apocalyptic number.

It is an amenable number.

155325431432 is a deficient number, since it is larger than the sum of its proper divisors (135909752518).

155325431432 is a wasteful number, since it uses less digits than its factorization.

155325431432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415678935 (or 19415678931 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

Adding to 155325431432 its reverse (234134523551), we get a palindrome (389459954983).

The spelling of 155325431432 in words is "one hundred fifty-five billion, three hundred twenty-five million, four hundred thirty-one thousand, four hundred thirty-two".