1201654237998 has 16 divisors (see below), whose sum is σ = 2403319632336. Its totient is φ = 400549553280.

The previous prime is 1201654237969. The next prime is 1201654238017. The reversal of 1201654237998 is 8997324561021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739440 + ... + 2330012.

It is an arithmetic number, because the mean of its divisors is an integer number (150207477021).

It is a 1-persistent number, because it is pandigital, but 2⋅1201654237998 = 2403308475996 is not.

Almost surely, 2^{1201654237998} is an apocalyptic number.

1201654237998 is an abundant number, since it is smaller than the sum of its proper divisors (1201665394338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201654237998 is a wasteful number, since it uses less digits than its factorization.

1201654237998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929699.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 1201654237998 in words is "one trillion, two hundred one billion, six hundred fifty-four million, two hundred thirty-seven thousand, nine hundred ninety-eight".