106421156501 has 16 divisors (see below), whose sum is σ = 119250256320. Its totient is φ = 94118532480.

The previous prime is 106421156489. The next prime is 106421156539. The reversal of 106421156501 is 105651124601.

It is a cyclic number.

It is not a de Polignac number, because 106421156501 - 2¹⁴ = 106421140117 is a prime.

It is a super-2 number, since 2×106421156501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106421156551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3929930 + ... + 3956916.

It is an arithmetic number, because the mean of its divisors is an integer number (7453141020).

Almost surely, 2^106421156501 is an apocalyptic number.

106421156501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

106421156501 is a deficient number, since it is larger than the sum of its proper divisors (12829099819).

106421156501 is a wasteful number, since it uses less digits than its factorization.

106421156501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36724.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 106421156501 in words is "one hundred six billion, four hundred twenty-one million, one hundred fifty-six thousand, five hundred one".