155928762278 has 16 divisors (see below), whose sum is σ = 260685857520. Its totient is φ = 69516228096.

The previous prime is 155928762277. The next prime is 155928762299. The reversal of 155928762278 is 872267829551.

It is a self number, because there is not a number n which added to its sum of digits gives 155928762278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155928762277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120687251 + ... + 120688542.

It is an arithmetic number, because the mean of its divisors is an integer number (16292866095).

Almost surely, 2^155928762278 is an apocalyptic number.

155928762278 is a deficient number, since it is larger than the sum of its proper divisors (104757095242).

155928762278 is a wasteful number, since it uses less digits than its factorization.

155928762278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241375831.

The product of its digits is 33868800, while the sum is 62.

The spelling of 155928762278 in words is "one hundred fifty-five billion, nine hundred twenty-eight million, seven hundred sixty-two thousand, two hundred seventy-eight".