121604550058 has 16 divisors (see below), whose sum is σ = 184729092480. Its totient is φ = 60028297056.

The previous prime is 121604550049. The next prime is 121604550079. The reversal of 121604550058 is 850055406121.

It is a junction number, because it is equal to n+sod(n) for n = 121604549999 and 121604550026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268710 + ... + 4297102.

It is an arithmetic number, because the mean of its divisors is an integer number (11545568280).

Almost surely, 2^121604550058 is an apocalyptic number.

121604550058 is a deficient number, since it is larger than the sum of its proper divisors (63124542422).

121604550058 is a wasteful number, since it uses less digits than its factorization.

121604550058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55581.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 121604550058 its reverse (850055406121), we get a palindrome (971659956179).

The spelling of 121604550058 in words is "one hundred twenty-one billion, six hundred four million, five hundred fifty thousand, fifty-eight".