30155653242 has 96 divisors (see below), whose sum is σ = 79160880960. Its totient is φ = 8435119680.

The previous prime is 30155653237. The next prime is 30155653247. The reversal of 30155653242 is 24235655103.

30155653242 is a `hidden beast` number, since 30 + 1 + 5 + 56 + 532 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (30155653237) and next prime (30155653247).

It is a super-2 number, since 2×30155653242² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30155653197 and 30155653206.

It is not an unprimeable number, because it can be changed into a prime (30155653247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49813 + ... + 250584.

It is an arithmetic number, because the mean of its divisors is an integer number (824592510).

Almost surely, 2^30155653242 is an apocalyptic number.

30155653242 is an abundant number, since it is smaller than the sum of its proper divisors (49005227718).

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

30155653242 is a wasteful number, since it uses less digits than its factorization.

30155653242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300445 (or 300426 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 30155653242 in words is "thirty billion, one hundred fifty-five million, six hundred fifty-three thousand, two hundred forty-two".