15155420542 has 16 divisors (see below), whose sum is σ = 24081784272. Its totient is φ = 7128581760.

The previous prime is 15155420519. The next prime is 15155420549. The reversal of 15155420542 is 24502455151.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 15155420498 and 15155420507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15155420549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32133 + ... + 177040.

It is an arithmetic number, because the mean of its divisors is an integer number (1505111517).

Almost surely, 2^15155420542 is an apocalyptic number.

15155420542 is a deficient number, since it is larger than the sum of its proper divisors (8926363730).

15155420542 is a wasteful number, since it uses less digits than its factorization.

15155420542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211323.

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 15155420542 its reverse (24502455151), we get a palindrome (39657875693).

The spelling of 15155420542 in words is "fifteen billion, one hundred fifty-five million, four hundred twenty thousand, five hundred forty-two".