155674728662 has 4 divisors (see below), whose sum is σ = 233512092996. Its totient is φ = 77837364330.

The previous prime is 155674728659. The next prime is 155674728667. The reversal of 155674728662 is 266827476551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266827476551 = 26339 ⋅10130509.

It is a super-2 number, since 2×155674728662² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155674728667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38918682164 + ... + 38918682167.

It is an arithmetic number, because the mean of its divisors is an integer number (58378023249).

Almost surely, 2^155674728662 is an apocalyptic number.

155674728662 is a deficient number, since it is larger than the sum of its proper divisors (77837364334).

155674728662 is an equidigital number, since it uses as much as digits as its factorization.

155674728662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77837364333.

The product of its digits is 33868800, while the sum is 59.

The spelling of 155674728662 in words is "one hundred fifty-five billion, six hundred seventy-four million, seven hundred twenty-eight thousand, six hundred sixty-two".