20102350155 has 8 divisors (see below), whose sum is σ = 32163760272. Its totient is φ = 10721253408.

The previous prime is 20102350139. The next prime is 20102350187. The reversal of 20102350155 is 55105320102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20102350155 - 2⁴ = 20102350139 is a prime.

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, 670078324 + ... + 670078353.

It is an arithmetic number, because the mean of its divisors is an integer number (4020470034).

Almost surely, 2^20102350155 is an apocalyptic number.

20102350155 is a deficient number, since it is larger than the sum of its proper divisors (12061410117).

20102350155 is a wasteful number, since it uses less digits than its factorization.

20102350155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340156685.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 20102350155 its reverse (55105320102), we get a palindrome (75207670257).

The spelling of 20102350155 in words is "twenty billion, one hundred two million, three hundred fifty thousand, one hundred fifty-five".