155420101335425 has 12 divisors (see below), whose sum is σ = 192765097445040. Its totient is φ = 124307583139920.

The previous prime is 155420101335419. The next prime is 155420101335461. The reversal of 155420101335425 is 524533101024551.

It is not a de Polignac number, because 155420101335425 - 2¹⁰ = 155420101334401 is a prime.

It is a super-2 number, since 2×155420101335425² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712336955 + ... + 712555104.

It is an arithmetic number, because the mean of its divisors is an integer number (16063758120420).

Almost surely, 2^{155420101335425} is an apocalyptic number.

It is an amenable number.

155420101335425 is a deficient number, since it is larger than the sum of its proper divisors (37344996109615).

155420101335425 is a wasteful number, since it uses less digits than its factorization.

155420101335425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424896432 (or 1424896427 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 155420101335425 its reverse (524533101024551), we get a palindrome (679953202359976).

The spelling of 155420101335425 in words is "one hundred fifty-five trillion, four hundred twenty billion, one hundred one million, three hundred thirty-five thousand, four hundred twenty-five".