155425533544 has 8 divisors (see below), whose sum is σ = 291422875410. Its totient is φ = 77712766768.

The previous prime is 155425533517. The next prime is 155425533547. The reversal of 155425533544 is 445335524551.

It can be written as a sum of positive squares in only one way, i.e., 149179792644 + 6245740900 = 386238^2 + 79030^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 155425533494 and 155425533503.

It is not an unprimeable number, because it can be changed into a prime (155425533547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9714095839 + ... + 9714095854.

Almost surely, 2^155425533544 is an apocalyptic number.

It is an amenable number.

155425533544 is a deficient number, since it is larger than the sum of its proper divisors (135997341866).

155425533544 is a wasteful number, since it uses less digits than its factorization.

155425533544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19428191699 (or 19428191695 counting only the distinct ones).

The product of its digits is 3600000, while the sum is 46.

The spelling of 155425533544 in words is "one hundred fifty-five billion, four hundred twenty-five million, five hundred thirty-three thousand, five hundred forty-four".