245515004156 has 48 divisors (see below), whose sum is σ = 480573142560. Its totient is φ = 109065922560.

The previous prime is 245515004129. The next prime is 245515004197. The reversal of 245515004156 is 651400515542.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24926 + ... + 701178.

It is an arithmetic number, because the mean of its divisors is an integer number (10011940470).

Almost surely, 2^245515004156 is an apocalyptic number.

It is an amenable number.

245515004156 is a deficient number, since it is larger than the sum of its proper divisors (235058138404).

245515004156 is a wasteful number, since it uses less digits than its factorization.

245515004156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676574 (or 676572 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 245515004156 its reverse (651400515542), we get a palindrome (896915519698).

The spelling of 245515004156 in words is "two hundred forty-five billion, five hundred fifteen million, four thousand, one hundred fifty-six".