155531423235045 has 64 divisors (see below), whose sum is σ = 294106203224064. Its totient is φ = 69191651800320.

The previous prime is 155531423235011. The next prime is 155531423235107. The reversal of 155531423235045 is 540532324135551.

It is not a de Polignac number, because 155531423235045 - 2¹³ = 155531423226853 is a prime.

It is a super-2 number, since 2×155531423235045² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155531423234985 and 155531423235003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216734067 + ... + 217450496.

It is an arithmetic number, because the mean of its divisors is an integer number (4595409425376).

Almost surely, 2^{155531423235045} is an apocalyptic number.

155531423235045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155531423235045 is a deficient number, since it is larger than the sum of its proper divisors (138574779989019).

155531423235045 is a wasteful number, since it uses less digits than its factorization.

155531423235045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434184762.

The product of its (nonzero) digits is 5400000, while the sum is 48.

The spelling of 155531423235045 in words is "one hundred fifty-five trillion, five hundred thirty-one billion, four hundred twenty-three million, two hundred thirty-five thousand, forty-five".