1201455503415 has 12 divisors (see below), whose sum is σ = 2082522872664. Its totient is φ = 640776268464.

The previous prime is 1201455503323. The next prime is 1201455503461. The reversal of 1201455503415 is 5143055541021.

1201455503415 is a `hidden beast` number, since 1 + 2 + 0 + 145 + 5 + 503 + 4 + 1 + 5 = 666.

It is not a de Polignac number, because 1201455503415 - 2¹² = 1201455499319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201455503415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13349505549 + ... + 13349505638.

It is an arithmetic number, because the mean of its divisors is an integer number (173543572722).

Almost surely, 2^{1201455503415} is an apocalyptic number.

1201455503415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1201455503415 is a deficient number, since it is larger than the sum of its proper divisors (881067369249).

1201455503415 is a wasteful number, since it uses less digits than its factorization.

1201455503415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26699011198 (or 26699011195 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1201455503415 in words is "one trillion, two hundred one billion, four hundred fifty-five million, five hundred three thousand, four hundred fifteen".