10521603770245 has 32 divisors (see below), whose sum is σ = 12823511500800. Its totient is φ = 8286591677760.

The previous prime is 10521603769967. The next prime is 10521603770257. The reversal of 10521603770245 is 54207730612501.

It is a happy number.

It is not a de Polignac number, because 10521603770245 - 2¹³ = 10521603762053 is a prime.

It is a super-2 number, since 2×10521603770245² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121606450 + ... + 121692940.

It is an arithmetic number, because the mean of its divisors is an integer number (400734734400).

Almost surely, 2^{10521603770245} is an apocalyptic number.

It is an amenable number.

10521603770245 is a deficient number, since it is larger than the sum of its proper divisors (2301907730555).

10521603770245 is a wasteful number, since it uses less digits than its factorization.

10521603770245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87985.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 10521603770245 in words is "ten trillion, five hundred twenty-one billion, six hundred three million, seven hundred seventy thousand, two hundred forty-five".