155355324145 has 32 divisors (see below), whose sum is σ = 218148657408. Its totient is φ = 103987473408.

The previous prime is 155355324121. The next prime is 155355324169. The reversal of 155355324145 is 541423553551.

It is an interprime number because it is at equal distance from previous prime (155355324121) and next prime (155355324169).

It is not a de Polignac number, because 155355324145 - 2²³ = 155346935537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2462637 + ... + 2524933.

It is an arithmetic number, because the mean of its divisors is an integer number (6817145544).

Almost surely, 2^155355324145 is an apocalyptic number.

It is an amenable number.

155355324145 is a deficient number, since it is larger than the sum of its proper divisors (62793333263).

155355324145 is a wasteful number, since it uses less digits than its factorization.

155355324145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64009.

The product of its digits is 900000, while the sum is 43.

Adding to 155355324145 its reverse (541423553551), we get a palindrome (696778877696).

The spelling of 155355324145 in words is "one hundred fifty-five billion, three hundred fifty-five million, three hundred twenty-four thousand, one hundred forty-five".