155653340 has 24 divisors (see below), whose sum is σ = 327916512. Its totient is φ = 62062400.

The previous prime is 155653321. The next prime is 155653357. The reversal of 155653340 is 43356551.

It is a junction number, because it is equal to n+sod(n) for n = 155653297 and 155653306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5936 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (13663188).

Almost surely, 2^155653340 is an apocalyptic number.

155653340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155653340 is an abundant number, since it is smaller than the sum of its proper divisors (172263172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155653340 is a wasteful number, since it uses less digits than its factorization.

155653340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24877 (or 24875 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 155653340 is about 12476.1107721918. The cubic root of 155653340 is about 537.9222166583.

The spelling of 155653340 in words is "one hundred fifty-five million, six hundred fifty-three thousand, three hundred forty".