155672748381 has 24 divisors (see below), whose sum is σ = 224228723040. Its totient is φ = 96021444352.

The previous prime is 155672748367. The next prime is 155672748397. The reversal of 155672748381 is 183847276551.

155672748381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155672748381 - 2¹⁸ = 155672486237 is a prime.

It is a super-3 number, since 3×155672748381³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155672748331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1470486 + ... + 1572791.

It is an arithmetic number, because the mean of its divisors is an integer number (9342863460).

Almost surely, 2^155672748381 is an apocalyptic number.

It is an amenable number.

155672748381 is a deficient number, since it is larger than the sum of its proper divisors (68555974659).

155672748381 is a wasteful number, since it uses less digits than its factorization.

155672748381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043373 (or 3043356 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 155672748381 in words is "one hundred fifty-five billion, six hundred seventy-two million, seven hundred forty-eight thousand, three hundred eighty-one".